Universal alloy milling cutter with chip breaker

Abstract

This invention relates to the field of cutting tool technology, specifically to a general-purpose alloy milling cutter disc with chip breaker grooves for roughing and finishing. It includes a milling cutter, a tool holder mounted on the top of the cutter, and multiple chip removal grooves arranged in a circular array on the bottom of the cutter. Chip breaker grooves are formed between the chip removal grooves. A tool holder is located on the top of the milling cutter, and two L-shaped seats are mounted on the left and right sides below the tool holder. Connecting seats are mounted on the top of the two L-shaped seats. Locking components are located on the front and rear sides of the tool holder for locking the tool holder. A limiting component is located in the middle of the vertical end of the L-shaped seats. This invention, by setting the locking components, allows the sidewalls of the tool holder to be pressed by the two pressing seats, and simultaneously, the top surface of the tool holder is pushed by a pressing rod, thus ensuring a firm connection of the tool holder within the tool holder. This invention, through its pushing design, ensures that the tool holder is subjected to pressure from all directions, improving the connection stability of the invention.

Description

Technical Field

[0001] This invention relates to the field of cutting tool technology, specifically to a general-purpose alloy end mill with chip breaking grooves for roughing and finishing. Background Technology

[0002] Carbide end mills are used for roughing and finishing operations in metal processing. During use, the carbide end mill needs to be installed with the tool holder inside the machine tool. The connection between the carbide end mill and the tool holder is crucial, directly affecting the stability of the milling process, cutting accuracy, and workpiece surface quality. The carbide end mill needs to withstand significant chip forces and vibrations during cutting. If the connection between the carbide end mill and the tool holder is not secure, it will affect the milling quality and workpiece accuracy. Therefore, a strong and stable connection between the carbide end mill and the tool holder is essential for effective milling operations.

[0003] Patent application number 202221892805.8 discloses an alloy milling cutter with a machine tool mounting plate, including a cutter shank with a mounting groove fixedly opened inside its upper end. The mounting plate is installed inside the mounting groove by fastening bolts. With the mounting plate, the milling cutter can be easily connected to the machine tool. During installation, as the machine tool connecting shaft and the mounting plate get closer, the abutment pushes against the machine tool connecting shaft, and the connected spring enters a compressed state. By utilizing the elastic force of the spring and the threaded connection between the two, the connection between the cutter and the machine tool can be made more secure. However, with long-term use, the elasticity of the spring may cause the connection to become unstable. The spring may loosen and deform when the abutment and the machine tool connecting shaft are under force, which will introduce certain errors and instabilities into the mounting plate and the machine tool connecting shaft, affecting the machining accuracy. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a general-purpose alloy milling cutter disc for roughing and finishing, which solves the technical problem that when using traditional alloy milling cutters with machine tool fixed discs, the installation between the machine tool connecting shaft and the fixed disc is achieved by the elastic force of a spring and the threaded connection between the two. However, after long-term use, due to the elasticity of the spring, the connection between the machine tool connecting shaft and the fixed disc may become loose, thus affecting the machining accuracy.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] The technical solution adopted by this invention to solve its technical problem is: a general-purpose alloy end mill with chip breaker groove for roughing and finishing, comprising:

[0007] A milling cutter, wherein a shank is mounted on the top of the milling cutter, and multiple chip removal grooves arranged in a circular array are provided on the bottom of the milling cutter, and chip breaking grooves are provided between the multiple chip removal grooves;

[0008] A tool holder is disposed on the top of a milling cutter. Two L-shaped seats are installed at the lower left and right ends of the tool holder, and connecting seats are installed on the top of the two L-shaped seats.

[0009] A locking assembly is provided on the front and rear sides of the tool holder and is used to lock the tool handle.

[0010] A limiting component is disposed at the middle of the vertical end of the L-shaped seat;

[0011] A suspension assembly is disposed below the tool holder and is used to press the tool shank against the inside of the tool holder.

[0012] Preferably, the locking assembly includes a pair of slide rods slidably connected to the front and rear ends below the tool holder. A pressing seat is installed on the opposite sides of the pair of slide rods. A storage groove adapted to the pressing seat is formed on the inner side of the tool holder. Pressing grooves adapted to the pressing seat are formed at the front and rear ends of the tool handle. A first triangular seat is installed on the opposite sides of the pair of slide rods. A sliding groove is formed diagonally above the first triangular seat. A fixing seat is installed at the middle of the front and rear ends of the tool holder. A first spring rod is slidably connected to the middle of the fixing seat. A second triangular seat is installed below the first spring rod. The second triangular seat is tightly fitted against the first triangular seat within the sliding groove. A pressure seat is installed above a spring rod. A pressing member is threaded to the top of the tool holder. The pressing member is positioned above the pressure seat. A plurality of L-shaped connectors arranged in a circular array are installed above the pressing member. A first drive disc is installed at the horizontal end of the plurality of L-shaped connectors. A top pressing rod is installed below the first drive disc. The bottom of the top pressing rod slides through the inner side of the tool holder and is in close contact with the top surface of the tool handle. Limiting blocks are installed at the left and right ends of the tool holder. Second limiting grooves adapted to the limiting blocks are opened at the left and right ends of the tool handle. A pressing component for pressing the top surface of the tool handle is provided on the inner side of the first drive disc.

[0013] Preferably, the pressure seat has an arc-shaped structure, and a curved groove is provided on the inner side below the extruder, and the pressure seat is slidably connected inside the curved groove.

[0014] Preferably, a U-shaped rod is installed at the lower left and right ends of the second triangular seat, and a first limiting groove is opened at the left and right ends of the side of the first triangular seat away from the central axis of the tool holder. A slider is installed on the side of the U-shaped rod away from the second triangular seat, and the slider is slidably connected inside the first limiting groove.

[0015] Preferably, the opposite edges of the two extrusion seats are provided with corners, and two first limiting plates are installed in the middle of the opposite sides of the two extrusion seats. The knife handle is provided with a limiting groove in the extrusion groove that is adapted to the first limiting plates.

[0016] Preferably, the limiting assembly includes a torsion rod threadedly connected to the middle of the vertical end of the L-shaped seat. A U-shaped limiting member is installed on the side of the torsion rod near the central axis of the tool holder. The U-shaped limiting member is tightly attached to the outside of the extruder. Two limiting rods are installed on the side of the U-shaped limiting member opposite to the extruder. The two limiting rods are slidably connected to the L-shaped seat. The inner side of the U-shaped limiting member is made of rubber. The extruder located on the outer side of the U-shaped limiting member has a rough design.

[0017] Preferably, the suspended assembly includes an extrusion block slidably connected to the bottom wall of the second limiting groove. A linkage groove is provided on one side of the bottom wall of the second limiting groove. The extrusion block is slidably connected in the linkage groove. An inclined opening is provided on the top surface of the extrusion block. A second spring rod is installed on the side of the extrusion block near the linkage groove. The side of the second spring rod opposite to the extrusion block is slidably connected to the knife handle.

[0018] Preferably, a pair of second limiting plates are installed below the extrusion block, a first curved groove is provided below the linkage groove of the knife handle, the bottom ends of the pair of second limiting plates extend into the inner side of the first curved groove and are equipped with driving blocks, a second curved groove is provided below the first curved groove of the knife handle, the driving block slides inside the second curved groove and extends out of the outer side of the knife handle, a second driving disc is installed on the side of the driving block away from the knife handle, and a wedge groove adapted to the extrusion block is provided on the bottom end of the limiting block near the extrusion block.

[0019] Preferably, the top-pressing assembly includes an adjusting rod threadedly connected to the inner side of the first drive disc and the top-pressing rod. The bottom end of the adjusting rod presses against the top surface of the tool holder. A rotating plate is installed at the top of the adjusting rod. A gripping rod arranged in a circular array is installed below the rotating plate. A connecting block is installed at the top of the U-shaped limiting member. A locking plate is installed at the top of the connecting block. The locking plate is located on the outer side of the rotating plate.

[0020] Preferably, the outer side of the rotating plate has a concave groove running from top to bottom, the opening end of the concave groove has a notch, the locking plate has an arc-shaped structure, and the locking plate extends into the inner side of the concave groove and fits tightly.

[0021] The beneficial effects of this invention are:

[0022] This invention, by setting a locking component, allows the side wall of the tool handle to be pressed by two pressing seats, while the top surface of the tool handle is pushed by a pressing rod, thereby making the tool handle firmly connected in the tool holder. The push-press design of this invention ensures that the tool handle is subjected to pressure from all directions, thus improving the connection stability of this invention.

[0023] This invention uses a limiting component to confine the extruder within a U-shaped limiting component, preventing it from rotating or moving inside the U-shaped limiting component and increasing the pressing force of the U-shaped limiting component on the extruder. Furthermore, the pressing component on the top of the tool holder adapts to different tool holder shapes to adjust the height of the adjusting rod. Then, with the cooperation of the connecting block and the locking plate, the rotating plate is pressed and limited, preventing the adjusting rod from detaching from the top surface of the tool holder due to vibration.

[0024] This invention, by setting up a suspension component, facilitates the suspension of the tool holder inside the tool holder, making manual installation of the milling cutter more convenient. At the same time, it further locks the tool holder. Moreover, when unlocking the tool holder, the rotation of the second drive disc can quickly detach the tool holder from the tool holder, improving the efficiency of installation or disassembly between the milling cutter and the tool holder. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a front view of the structure of the present invention;

[0028] Figure 3 This is an exploded view of the locking component of the present invention;

[0029] Figure 4 for Figure 3 A magnified view of part A in the image;

[0030] Figure 5 This is a schematic diagram of the tool holder and tool shank of the present invention;

[0031] Figure 6 for Figure 2 A magnified view of part B in the image;

[0032] Figure 7 This is a schematic diagram of the suspended component of the present invention;

[0033] Figure 8 for Figure 7 A magnified view of part C;

[0034] Figure 9 This is a schematic diagram of the overall top-pressure assembly of the present invention;

[0035] Figure 10 This is a cross-sectional view of the rotating plate and locking plate of the present invention.

[0036] In the picture:

[0037] 1. End mill; 10. Tool holder; 11. Chip vent; 12. Chip breaker;

[0038] 2. Tool holder; 21. L-shaped seat; 22. Connecting seat;

[0039] 3. Locking assembly; 31. Slide rod; 32. Pressing seat; 320. First limiting plate; 33. Storage slot; 34. First triangular seat; 35. Fixed seat; 36. First spring rod; 37. Second triangular seat; 38. Pressure seat; 39. Pressing component; 310. Curved groove; 311. L-shaped connector; 312. First drive plate; 313. Top pressure rod; 314. U-shaped rod; 315. Slider; 316. First limiting groove; 317. Limiting block; 318. Second limiting groove;

[0040] 4. Limiting component; 41. Torsion bar; 42. U-shaped limiting component; 43. Limiting rod;

[0041] 5. Suspended assembly; 51. Extrusion block; 510. Linkage groove; 5100. Wedge groove; 52. Inclined opening; 53. Second spring rod; 54. Second limiting plate; 55. First curved groove; 56. Drive block; 57. Second curved groove; 58. Second drive disc;

[0042] 6. Top pressure assembly; 61. Adjusting rod; 62. Rotary plate; 620. Concave groove; 63. Handle; 64. Connecting block; 65. Locking plate. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0044] Please see Figures 1 to 10 The present invention provides a technical solution:

[0045] Example 1: As Figure 1 and Figure 5As shown, a general-purpose alloy milling cutter disc with chip breaking grooves for roughing and finishing includes a milling cutter 1, a tool holder 10 mounted on the top of the milling cutter 1, and multiple chip removal grooves 11 arranged in a circular array on the bottom of the milling cutter 1, with chip breaking grooves 12 formed between the multiple chip removal grooves 11; a tool holder 2 is disposed on the top of the milling cutter 1, and two L-shaped seats 21 are mounted on the left and right ends below the tool holder 2, with connecting seats 22 mounted on the top of the two L-shaped seats 21; a locking assembly 3 is disposed on the front and rear sides of the tool holder 2 for locking the tool holder 10, and the locking assembly 3 includes a pair of sliding rods 31 slidably connected to the front and rear ends below the tool holder 2, with connecting seats 22 mounted on opposite sides of the pair of sliding rods 31. The extrusion seat 32 and the inner side of the tool holder 2 are provided with a storage groove 33 that matches the extrusion seat 32. The front and rear ends of the tool holder 10 are provided with extrusion grooves that match the extrusion seat 32. A first triangular seat 34 is installed on the opposite side of a pair of sliding rods 31. A second triangular seat 37 is tightly attached to the first triangular seat 34 in the sliding groove. A fixed seat 35 is installed in the middle of the front and rear ends of the tool holder 2. A first spring rod 36 is slidably connected to the middle of the fixed seat 35. A second triangular seat 37 is installed below the first spring rod 36 and is tightly attached to the second triangular seat 37 in the sliding groove. A pressure seat 38 is installed above the first spring rod 36. The top of the tool holder 2 is threaded with an extrusion seat 38. The pressing component 39 is positioned above the pressure seat 38. Above the pressing component 39, multiple L-shaped connectors 311 arranged in a circular array are mounted. A first drive disc 312 is mounted on the horizontal end of each L-shaped connector 311. A top pressure rod 313 is mounted below the first drive disc 312. The top pressure rod 313 slides through the inner side of the tool holder 2 and is in close contact with the top surface of the tool handle 10. Limiting blocks 317 are mounted at both ends of the tool holder 2. Second limiting grooves 318, adapted to the limiting blocks 317, are opened at both ends of the tool handle 10. The pressure seat 38 has an arc-shaped structure, and a curved section is opened on the inner side below the pressing component 39. The curved groove 310 and the pressure seat 38 are slidably connected inside the curved groove 310. The left and right ends of the second triangular seat 37 are equipped with U-shaped rods 314. The left and right ends of the first triangular seat 34 away from the central axis of the tool holder 2 are provided with first limiting grooves 316. The side of the U-shaped rod 314 away from the second triangular seat 37 is equipped with a slider 315. The slider 315 is slidably connected inside the first limiting groove 316. The opposite sides of the two extrusion seats 32 are provided with corners. The middle of the opposite sides of the two extrusion seats 32 is provided with two first limiting plates 320. The tool holder 10 is located in the extrusion groove and is provided with a limiting groove that matches the first limiting plate 320.

[0046] During operation, when the milling cutter 1 is fitted inside the tool holder 2, the L-shaped connector 311 is manually driven to rotate, causing the pressing member 39 to move downwards along the tool holder 2. At this time, the bottom end face of the pressing member 39 is pressed downwards on the pressure seat 38, causing the first spring rod 36 and the second triangular seat 37 to slide downwards. Then, the first triangular seat 34 and the sliding rod 31 extend into the tool holder 2 under the pushing of the second triangular seat 37, thereby driving the pressing seat 32 into the pressing groove inside the tool holder 10. The pressing grooves on both sides of the tool holder 10 are pressed by the pressing seat 32. This provides a limiting effect on the tool holder 10, improving the stability of the milling cutter 1. Simultaneously, during the rotation of the extrusion member 39, the first drive disc 312 also drives the top pressure rod 313 to rotate inside the tool holder 2 until the bottom end of the top pressure rod 313 presses against the top surface of the tool holder 10. During the pressing of the side wall of the tool holder 10, the top surface of the tool holder 10 is also pressed by the top pressure rod 313. Through the push-press design, the tool holder 10 is subjected to pressure in all directions, further improving the stability of the tool holder 10.

[0047] It is worth noting that the first spring rod 36 in this invention helps to keep the pressure seat 38 in close contact with the extrusion member 39. When the tool holder 10 is subjected to vibration, the vibration is transmitted between the extrusion seat 32, the slide rod 31 and the first triangular seat 34, which in turn causes the first triangular seat 34 to drive the second triangular seat 37 to push away from the tool holder 2. At this time, the first spring rod 36 transmits this vibration to the pressure seat 38, and the reaction force of the pressure seat 38 is transmitted to the extrusion member 39. At this time, the extrusion member 39 is more stable with the tool holder 2, but it will not cause the extrusion member 39 to rotate slightly on the tool holder 2, thereby improving the stability of the tool holder 10 and improving the processing accuracy of this invention.

[0048] It is worth noting that the present invention provides a second limiting groove 318 and a limiting block 317, which helps to improve the limiting of the tool holder 10 inside the tool holder 2 and ensure that the extrusion groove and the extrusion seat 32 are on the same plane.

[0049] It is worth noting that the pressure seat 38 has an arc-shaped structure and is set inside the curved groove 310 for rotation, which increases the contact area between the extruder 39 and the pressure seat 38, thereby improving the pushing stability of the pressure seat 38.

[0050] It is worth noting that when the tool holder 10 is unlocked, the elastic potential energy of the first spring rod 36 is released by rotating the extrusion member 39, thereby driving the second triangular seat 37 to slide upward along the first triangular seat 34. By setting the U-shaped rod 314 and the slider 315 to cooperate with each other, the invention drives the first triangular seat 34 away from the central axis of the tool holder 2, so that the extrusion seats 32 on both sides can automatically disengage from the tool holder 10.

[0051] To improve the limiting effect of the extrusion seat 32 and the extrusion groove, the present invention sets the side wall of the extrusion seat 32 as an edge corner. To increase the stability and limiting effect between the extrusion seat 32 and the tool holder 10, the present invention sets a first limiting plate 320 and a limiting groove, so that the extrusion seat 32 is pressed more stably within the tool holder 10.

[0052] Example 2: As one embodiment of the present invention, such as Figure 2 and Figure 6 As shown, the limiting component 4 is located at the middle of the vertical end of the L-shaped seat 21. The limiting component 4 includes a torsion rod 41 threadedly connected to the middle of the vertical end of the L-shaped seat 21. A torsion cap is installed on the side of the torsion rod 41 away from the central axis of the tool holder 2. A U-shaped limiting member 42 is installed on the side of the torsion rod 41 close to the central axis of the tool holder 2. The U-shaped limiting member 42 is tightly attached to the outside of the extrusion member 39. Two limiting rods 43 are installed on the side of the U-shaped limiting member 42 opposite to the extrusion member 39. The two limiting rods 43 are slidably connected to the L-shaped seat 21. The inner side of the U-shaped limiting member 42 is made of rubber, and the outer side of the extrusion member 39 located on the U-shaped limiting member 42 has a rough design.

[0053] During operation, after the extrusion seats 32 on both sides press the tool holder 10, the twisting cap and twisting rod 41 are driven to rotate by manual hands. Then, under the limiting action of the limiting rod 43, the U-shaped limiting parts 42 on both sides move towards each other until the U-shaped limiting parts 42 move to press against the side wall of the extrusion part 39. This helps to limit the extrusion part 39 and prevent the extrusion part 39 from moving up and down on the tool holder 2 due to vibration, which would affect the machining accuracy of the milling cutter 1.

[0054] It is worth noting that the present invention sets the U-shaped limiting member 42 to be made of rubber, and the outer wall of the extrusion member 39 located on the U-shaped limiting member 42 is roughened, which helps to increase the friction between the U-shaped limiting member 42 and the extrusion member 39, prevent the extrusion member 39 from rotating and moving inside the U-shaped limiting member 42, improve the pressing force of the U-shaped limiting member 42 on the extrusion member 39, and thus improve the limiting effect of the present invention.

[0055] Example 3: As one embodiment of the present invention, such as Figure 7 and Figure 8As shown, the suspended assembly 5 is located below the tool holder 2 and is used to press the tool handle 10 against the inner side of the tool holder 2. The suspended assembly 5 includes a pressing block 51 slidably connected to the bottom wall of the second limiting groove 318. A linkage groove 510 is opened on one side of the bottom wall of the second limiting groove 318. The pressing block 51 is slidably connected in the linkage groove 510. A beveled opening 52 is opened on the top surface of the pressing block 51. A second spring rod 53 is installed on the side of the pressing block 51 near the linkage groove 510. The side of the second spring rod 53 facing away from the pressing block 51 is slidably connected to the tool handle 10. A pair of second limiting plates 54 are installed below the pressing block 51. A first curved groove 55 is provided below the linkage groove 510. The bottom ends of a pair of second limiting plates 54 extend into the inner side of the first curved groove 55 and are equipped with driving blocks 56. A second curved groove 57 is provided below the first curved groove 55. The driving block 56 slides inside the second curved groove 57 and extends out of the outer side of the tool handle 10. A second driving disk 58 is installed on the side of the driving block 56 away from the tool handle 10. A driving rod in a ring array is installed on the outer side of the second driving disk 58. A wedge groove 5100 adapted to the extrusion block 51 is provided on the bottom end of the limiting block 317 near the extrusion block 51.

[0056] When the tool holder 10 is fitted inside the tool holder 2, the limiting block 317 inside the tool holder 2 slides along the second limiting groove 318 until the bottom end face of the limiting block 317 contacts the inclined opening 52 on the pressing block 51, thereby driving the pressing block 51 to extend along the linkage groove 510. At the same time, the spring inside the second spring rod 53 enters the compressed state, and then the pressing block 51 is driven to press the limiting block 317 by the principle of spring reaction force, so that the tool holder 10 is suspended inside the tool holder 2, which is conducive to the convenient installation of the milling cutter 1 by manual means.

[0057] When the limiting block 317 slides on the bottom wall of the second limiting groove 318, it is squeezed by the squeezing block 51 inside the wedge groove 5100, which further locks the tool holder 10 and improves the stability of the suspension. When the tool holder 10 is unlocked, the second driving disk 58 can be rotated by rotating the driving rod, which in turn drives the driving block 56 to rotate along the second curved groove 57. Then, with the cooperation of the second limiting plate 54, the squeezing block 51 is driven into the linkage groove 510, which achieves the purpose of quickly unlocking the tool holder 10.

[0058] Example 4: As one embodiment of the present invention, such as Figure 2 , Figure 3 , Figure 9 and Figure 10As shown, a pressing assembly 6 for pressing the top surface of the tool holder 10 is provided on the inner side of the first drive disk 312. The pressing assembly 6 includes an adjusting rod 61 threadedly connected to the inner side of the first drive disk 312 and the pressing rod 313. The bottom end of the adjusting rod 61 is pressed on the top surface of the tool holder 10. A rotating plate 62 is installed at the top of the adjusting rod 61. A gripping rod 63 arranged in a ring array is installed below the rotating plate 62. A connecting block 64 is installed at the top of the U-shaped limiting member 42. A locking plate 65 is installed at the top of the connecting block 64. The locking plate 65 is located on the outer side of the rotating plate 62. A concave groove 620 is opened on the outer side of the rotating plate 62 from top to bottom. A notch is opened at the opening end of the concave groove 620. The locking plate 65 has an arc-shaped structure and extends into the inner side of the concave groove 620 to fit tightly.

[0059] Due to the different sizes and shapes of the tool handle 10, when the pressing seats 32 on both sides press the tool handle 10, there may still be a distance between the top pressing rod 313 and the tool handle 10. By rotating the grip rod 63, the rotating plate 62 and the adjusting rod 61 are driven to rotate. Since the adjusting rod 61, the first driving plate 312 and the top pressing rod 313 are threaded, the adjusting rod 61 can move up and down inside the top pressing rod 313, so that the adjusting rod 61 can press the top surface of the tool handle 10. This invention can adapt to tool handles 10 with different shapes and sizes to adjust the height of the adjusting rod 61, ensuring that the top surface and side wall of tool handles 10 with different shapes can be pressed, thus improving the pressing effect on the tool handle 10. When the adjusting rod 61 is close to the top surface of the tool handle 10, when the U-shaped limiting members 42 on both sides move towards each other, the connecting block 64 drives the locking plate 65 to approach the outer wall of the rotating plate 62 and be pressed, preventing the adjusting rod 61 from rotating slightly inside the top pressing rod 313.

[0060] To improve the limiting effect of the rotating plate 62, the present invention provides a concave groove 620, which helps the locking plate 65 to press one of the concave grooves 620 at a corresponding height, preventing the rotating plate 62 from detaching from the top surface of the tool holder 10 due to small-amplitude rotation. The present invention also provides a notch angle, which helps the locking plate 65 to quickly limit and lock within the concave groove 620, preventing the rotating plate 62 and the locking plate 65 from colliding.

[0061] Working principle: This is a general-purpose alloy milling cutter disc with chip breaker grooves for roughing and finishing.

[0062] When the tool holder 10 is fitted inside the tool holder 2, the limiting block 317 inside the tool holder 2 slides along the second limiting groove 318 until the bottom end face of the limiting block 317 contacts the inclined opening 52 on the pressing block 51, thereby driving the pressing block 51 to extend along the linkage groove 510, and at the same time causing the spring inside the second spring rod 53 to enter the compressed state. Then, through the principle of spring reaction force, the pressing block 51 is driven to press the limiting block 317, thereby causing the tool holder 10 to be suspended inside the tool holder 2.

[0063] When the milling cutter 1 is fitted inside the tool holder 2, the L-shaped connector 311 is manually driven to rotate, causing the extrusion member 39 to move downward along the tool holder 2. At this time, the bottom end face of the extrusion member 39 is pressed down on the pressure seat 38, causing the first spring rod 36 and the second triangular seat 37 to slide downward. At this time, the first triangular seat 34 and the sliding rod 31 extend into the tool holder 2 under the push of the second triangular seat 37, thereby driving the extrusion seat 32 into the extrusion groove inside the tool holder 10. The extrusion grooves on both sides of the tool holder 10 are pressed by the extrusion seat 32, thereby limiting the tool holder 10 and improving the stability of the milling cutter 1. At the same time, during the rotation of the extrusion member 39, the first drive disc 312 also drives the top pressure rod 313 to rotate inside the tool holder 2 until the bottom end of the top pressure rod 313 presses the top surface of the tool holder 10.

[0064] After the extrusion seats 32 on both sides press the knife handle 10, the twisting cap and twisting rod 41 are driven to rotate by manual hands. Then, under the limiting action of the limiting rod 43, the U-shaped limiting parts 42 on both sides move towards each other until the U-shaped limiting parts 42 move to press the side wall of the extrusion part 39.

[0065] By rotating the grip 63, the rotating plate 62 and the adjusting rod 61 are driven to rotate. Since the adjusting rod 61, the first drive plate 312, and the top pressure rod 313 are threaded, the adjusting rod 61 can move up and down inside the top pressure rod 313, thereby pressing the top surface of the tool holder 10 with the adjusting rod 61. This invention can adapt to tool holders 10 of different shapes and sizes to adjust the height of the adjusting rod 61, ensuring that the top surface and side wall of tool holders 10 of different shapes can be pressed.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A general-purpose alloy end mill with chip breaker grooves for roughing and finishing, characterized in that, include: A milling cutter (1) is provided with a shank (10) mounted on its top. The bottom of the milling cutter (1) is provided with a plurality of chip removal grooves (11) arranged in a ring array, and chip breaking grooves (12) are provided between the plurality of chip removal grooves (11). Tool holder (2), the tool holder (2) is set on the top of the milling cutter (1), and two L-shaped seats (21) are installed on the lower left and right ends of the tool holder (2), and connecting seats (22) are installed on the top of the two L-shaped seats (21). Locking assembly (3), which is disposed on the front and rear sides of the tool holder (2) and is used to lock the tool handle (10); Limiting component (4), the limiting component (4) is disposed at the middle of the vertical end of the L-shaped seat (21); Suspension component (5), which is disposed below the tool holder (2) and is used to press the tool handle (10) against the inside of the tool holder (2); The locking assembly (3) includes a pair of slide rods (31) slidably connected to the front and rear ends below the tool holder (2). A pressing seat (32) is installed on the opposite side of the pair of slide rods (31). A storage groove (33) adapted to the pressing seat (32) is opened on the inner side of the tool holder (2). A pressing groove adapted to the pressing seat (32) is opened at both the front and rear ends of the tool handle (10). A first triangular seat (34) is installed on the opposite side of the pair of slide rods (31). A sliding groove is opened above the first triangular seat (34). A fixing seat (35) is installed in the middle of the front and rear ends of the tool holder (2). A first spring rod (36) is slidably connected to the middle of the fixing seat (35). A second triangular seat (37) is installed below the first spring rod (36). The second triangular seat (37) is tightly attached to the first triangular seat (34) in the sliding groove. Above the first spring rod (36)... A pressure seat (38) is installed, and a pressing member (39) is threadedly connected to the top of the tool holder (2). The pressing member (39) is located above the pressure seat (38). A plurality of L-shaped connectors (311) arranged in a ring array are installed above the pressing member (39). A first drive disc (312) is installed at the horizontal end of the plurality of L-shaped connectors (311). A top pressure rod (313) is installed below the first drive disc (312). The bottom of the top pressure rod (313) slides through the inner side of the tool holder (2) and is in close contact with the top surface of the tool handle (10). Limiting blocks (317) are installed at the left and right ends of the tool holder (2). A second limiting groove (318) adapted to the limiting block (317) is opened at the left and right ends of the tool handle (10). A top pressure assembly (6) for pressing the top surface of the tool handle (10) is provided on the inner side of the first drive disc (312). The second triangular seat (37) is equipped with U-shaped rods (314) at the lower left and right ends. The first triangular seat (34) is provided with first limiting grooves (316) at the left and right ends on the side away from the central axis of the tool holder (2). The U-shaped rod (314) is equipped with a slider (315) on the side away from the second triangular seat (37). The slider (315) is slidably connected inside the first limiting groove (316). The limiting component (4) includes a torsion bar (41) threadedly connected to the middle of the vertical end of the L-shaped seat (21). A U-shaped limiting member (42) is installed on the side of the torsion bar (41) near the central axis of the tool holder (2). The U-shaped limiting member (42) is tightly attached to the outside of the extruder (39). Two limiting rods (43) are installed on the side of the U-shaped limiting member (42) facing away from the extruder (39). The two limiting rods (43) are slidably connected to the L-shaped seat (21). The inner side of the U-shaped limiting member (42) is made of rubber. The extruder (39) is located on the outer side of the U-shaped limiting member (42) with a rough design. The suspended assembly (5) includes an extrusion block (51) slidably connected to the bottom wall of the second limiting groove (318). A linkage groove (510) is provided on one side of the bottom wall of the second limiting groove (318). The extrusion block (51) is slidably connected in the linkage groove (510). A sloping opening (52) is provided on the top surface of the extrusion block (51). A second spring rod (53) is installed on the side of the extrusion block (51) near the linkage groove (510). The side of the second spring rod (53) facing away from the extrusion block (51) is slidably connected to the handle (10). A pair of second limiting plates (54) are installed below the extrusion block (51). The handle (10) is provided with a first curved groove (55) below the linkage groove (510). The bottom ends of the pair of second limiting plates (54) extend into the inner side of the first curved groove (55) and are provided with a drive block (56). The handle (10) is provided with a second curved groove (57) arranged horizontally below the first curved groove (55). The drive block (56) slides inside the second curved groove (57) and extends out of the outer side of the handle (10). A second drive disc (58) is installed on the side of the drive block (56) away from the handle (10). The bottom end of the limiting block (317) is provided with a wedge groove (5100) that matches the extrusion block (51) on the side close to the extrusion block (51).

2. The general-purpose alloy milling cutter disc for roughing and finishing as described in claim 1, characterized in that: The pressure seat (38) has an arc-shaped structure, and a curved groove (310) is provided on the inner side below the extrusion member (39). The pressure seat (38) is slidably connected to the inner side of the curved groove (310).

3. The general-purpose alloy milling cutter disc for roughing and finishing as described in claim 1, characterized in that: The two extrusion seats (32) have corners on their opposite sides, and two first limiting plates (320) are installed in the middle of the opposite sides of the two extrusion seats (32). The knife handle (10) is located in the extrusion groove and has a limiting groove that is compatible with the first limiting plate (320).

4. The general-purpose alloy milling cutter disc for roughing and finishing as described in claim 1, characterized in that: The top-pressing assembly (6) includes an adjusting rod (61) threadedly connected to the inner side of the first drive disc (312) and the top-pressing rod (313). The bottom end of the adjusting rod (61) is pressed against the top surface of the tool holder (10). A rotating plate (62) is installed at the top of the adjusting rod (61). A gripping rod (63) arranged in a ring array is installed below the rotating plate (62). A connecting block (64) is installed at the top of the U-shaped limiting member (42). A locking plate (65) is installed at the top of the connecting block (64). The locking plate (65) is located on the outside of the rotating plate (62).

5. The general-purpose alloy milling cutter disc for roughing and finishing as described in claim 4, characterized in that: The outer side of the rotating plate (62) is provided with a concave groove (620) from top to bottom. The opening end of the concave groove (620) is provided with a notch. The locking plate (65) has an arc-shaped structure and extends into the inner side of the concave groove (620) and is in close contact.

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